ALD2303SAL

Overview

The ALD2303SAL is a dual precision micropower CMOS voltage comparator in an 8-pin SOIC package. It operates on a single +5V or dual ±5V supply, consuming only 40µA total supply current. The device features open-drain outputs capable of sinking up to 60mA and includes a high input impedance buffer. Key electrical parameters include a typical input offset voltage of 5mV, input bias current of 200pA, and a response time of 6.5µs.

Feature Summary

• Extremely low power consumption combined with high precision for sensitive detection applications
• Built-in high input impedance buffer that virtually eliminates source impedance effects
• Integrated output driver providing up to 60mA sink current capability

Applications

• Sensor detection circuits
• MOSFET driver
• High source impedance voltage comparison circuits
• Power supply voltage monitor
• Photodetector sensor circuit

Procurement Notes

Verify the specific suffix 'SAL' indicates the lead-free version within the SOIC-8 package configuration. Confirm the operating temperature range aligns with your design requirements, as this variant supports 0°C to +70°C. Ensure compatibility with standard industry pinouts when replacing legacy components.

Selection Notes

Select this component for applications requiring low standby power without sacrificing output drive strength. The open-drain architecture allows flexible interfacing with various logic families including TTL and CMOS. Consider thermal management if driving loads near the maximum 60mA sink current limit continuously.

Part Context

This part belongs to the ALD2303 series of dual precision comparators manufactured by Advanced Linear Devices. It utilizes advanced silicon gate EPAD CMOS technology to achieve ultra-low input bias currents and high input impedance. The device is designed to replace standard industry comparators while offering superior micropower performance.

Replacement Considerations

The datasheet notes compatibility with LM193 type industry standard comparators regarding pinout. Verify functional equivalence before substitution, particularly regarding output drive capabilities and input offset voltage specifications.